com.genuitec.eclipse.gerrit.tools.internal.gps.GpsQuickImportFiles.java Source code

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Here is the source code for com.genuitec.eclipse.gerrit.tools.internal.gps.GpsQuickImportFiles.java

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/**
 *  Copyright (c) 2015 Genuitec LLC.
 *  All rights reserved. This program and the accompanying materials
 *  are made available under the terms of the Eclipse Public License v1.0
 *  which accompanies this distribution, and is available at
 *  http://www.eclipse.org/legal/epl-v10.html
 *
 *  Contributors:
 *  Piotr Tomiak <piotr@genuitec.com> - initial API and implementation
 */
package com.genuitec.eclipse.gerrit.tools.internal.gps;

import java.io.File;
import java.util.Comparator;
import java.util.Set;
import java.util.TreeSet;

import org.apache.commons.lang.StringUtils;
import org.eclipse.core.runtime.preferences.IEclipsePreferences;
import org.eclipse.core.runtime.preferences.InstanceScope;
import org.osgi.service.prefs.BackingStoreException;

import com.genuitec.eclipse.gerrit.tools.GerritToolsPlugin;

public class GpsQuickImportFiles {

    private static final Set<File> files = new TreeSet<File>(new Comparator<File>() {
        @Override
        public int compare(File o1, File o2) {
            return o1.getName().compareToIgnoreCase(o2.getName());
        }
    });

    private static IEclipsePreferences prefs = InstanceScope.INSTANCE.getNode(GerritToolsPlugin.PLUGIN_ID);

    static {
        load();
    }

    public static void addGpsFile(File file) {
        assert file.getName().endsWith(".gps"); //$NON-NLS-1$
        synchronized (files) {
            files.add(file);
            store();
        }
    }

    public static File[] getGpsFiles() {
        synchronized (files) {
            return files.toArray(new File[files.size()]);
        }
    }

    private static void store() {
        prefs.put("quick-files", StringUtils.join(files, '\n')); //$NON-NLS-1$
        try {
            prefs.flush();
        } catch (BackingStoreException e) {
            GerritToolsPlugin.getDefault().log(e);
        }
    }

    private static void load() {
        synchronized (files) {
            for (String file : StringUtils.split(prefs.get("quick-files", ""), '\n')) { //$NON-NLS-1$ //$NON-NLS-2$
                File f = new File(file);
                if (f.exists()) {
                    files.add(f);
                }
            }
        }
    }

}